<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../react18/react.development.js"></script>
    <script src="../react18/react-dom.development.js"></script>
    <script src="../react18/babel.min.js"></script>
</head>
<body>
    <div id="app"></div>
    <script type="text/babel">
      class App extends React.Component{
        state={
            isHot:true
        }
        render(){
            const {isHot} = this.state;
            if(isHot){
                return(
                    <div>
                        <h1>天气真热啊</h1>
                        <p>热的雪糕都化不了</p>
                    </div>
                )
            }else{
                return(
                    <div>
                        <h1>真很忘了</h1>
                        <p>真得很讨厌</p>
                    
                    </div>
                )
            }
        }
    }
        const root =ReactDOM.createRoot(document.getElementById('app'));
        root.render(<App/>)

    </script>
</body>
</html>